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Heterochromatin variation and LINE-1 distribution in Artibeus (Chiroptera, Phyllostomidae) from Central Amazon, Brazil

by: Silva de Souza, Érica Martinha; Gross, Maria Claudia; Silva, Carlos Eduardo Faresin; Sotero-Caio, Cibele G.; Feldberg, Eliana

Publication date: 2017-9-14
Usage: Attribution 4.0 International
Topics: Bats, chromosomes, cytogenetics, FISH, repetitive DNA, Stenodermatinae
Publisher: Pensoft Publishers
Collection: biodiversity
Contributor: Pensoft Publishers
Language: English
Rights: https://biodiversitylibrary.org/permissions
Rights-holder: Copyright held by individual article author(s).
Volume: 11
Item Size: 16.4M

Abstract: Species in the subgenus Artibeus Leach, 1821 are widely distributed in Brazil. Conserved karyotypes characterize the group with identical diploid number and chromosome morphology. Recent studies suggested that the heterochromatin distribution and accumulation patterns can vary among species. In order to assess whether variation can also occur within species, we have analyzed the chromosomal distribution of constitutive heterochromatin in A. planirostris (Spix, 1823) and A. lituratus (Olfers, 1818) from Central Amazon (North Brazil) and contrasted our findings with those reported for other localities in Brazil. In addition, Ag-NOR staining and FISH with 18S rDNA, telomeric, and LINE-1 probes were performed to assess the potential role that these different repetitive markers had in shaping the current architecture of heterochromatic regions. Both species presented interindividual variation of constitutive heterochromatin. In addition, in A. planirostris the centromeres of most chromosomes are enriched with LINE-1, colocated with pericentromeric heterochromatin blocks. Overall, our data indicate that amplification and differential distribution of the investigated repetitive DNAs might have played a significant role in shaping the chromosome architecture of the subgenus Artibeus.
Addeddate: 2025-03-16 16:50:37
Bhl_virtual_titleid: 210879
Bhl_virtual_volume: v.11:no.4 (2017)
Call number: 10_3897_CompCytogen_v11i4_14562
Call-number: 10_3897_CompCytogen_v11i4_14562
Foldoutcount: 0
Genre: article
Identifier: heterochromatin11silv
Identifier-ark: ark:/13960/s21g94b9pfn
Identifier-bib: 10_3897_CompCytogen_v11i4_14562
Identifier-doi: 10.3897/CompCytogen.v11i4.14562
Issue: 4
Ocr: tesseract 5.3.0-6-g76ae
Ocr_detected_lang: en
Ocr_detected_lang_conf: 1.0000
Ocr_detected_script: Latin
Ocr_detected_script_conf: 1.0000
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Ocr_parameters: -l eng
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Page_range: 613-626
Pages: 14
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Possible copyright status: In copyright. Digitized with the permission of the rights holder.
Ppi: 300
Source: Comparative Cytogenetics 11(4)
Year: 2017